Mechanical movement.



No. 809,160. PATENTED' JAN. 2, 1906.

. R. T. WINGO.

MECHANICAL MOVEMENT. .APPLIGATION FILED MAY31, 1905.

2 SHEETSSHEBT 1.

7 N0- 809,160. PATENTED JAN. 2, 1906.

R. T. WINGO.

MECHANICAL MOVEMENT. I APPLICATION FILED MAY 31, 1905.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

RICHARD T. WINGO, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO BROWN ANDSHARPE MANUFACTURING COMPANY, OF PROVI- DENCE, RHODE ISLAND, ACORPORATION OF RHODE ISLAND.

MECHANICAL MOVEMENT.

No. so9,1e0.

Specification of Letters Patent.

Patented Jan. 2, 1906.

To all whom it may concern.-

Be it known that I, RICHARD T. WINGO, of Providence, in the county ofProvidence and State of Rhode Island, have invented certain new anduseful Improvements in Mechanical Movements; and I do hereby declare thefollowing specification, taken in connection with the accompanyingdrawings, forming a part of the same, to be a full, clear, and exactdescription thereof. 7

The invention relates to devices for insuring the proper timing andoperation of an intermittently-operating clutch. These devices consistof a rotary member or members carried by the clutch and a non-rotarymember or members movable into and out of the path of the rotary membersThese members are so arranged and operated that in disengaging anon-rotary member from a rotary member to throw the clutch intooperation a non-rotary member is moved into the path of a rotary memberready to throw the clutch out of operation, so that there is no dangerof failure to throw out at the proper time or of operating improperly.

In the accompanying drawings mechanism is shown embodying the featuresof invention in their preferred forms.

In the drawings, Figure 1 is a plan view of a mechanism embodying theinvention. Fig. 2 isa sectional elevation on line 2 2 of Fig. 1. Fig. 3is a plan view showing a modified form of mechanism; and Figs. 4 and 5are a plan and elevation, respectively, of a further modification.

In the construction shown in the drawings the clutch F, the operation ofwhich is to be controlled, is connected, through gears G and E, with ashaft E, which is intermittently r0- tated through the operation of theclutch.

This shaft may be connected to operate or.

control any mechanism which it is desired to operate without danger ofgetting it out of time or of improper operation.

The clutch F is connected to rotate with the ear G, while being free tomove longitudina ly in relation thereto, and is forced toward aconstantly-rotating clutch member F by springs F interposed between theclutch and the hub of the gear G. The clutch is held out of engagementwith the clutch member F against the tension of the springs F by thecooperation of cams f, carried with the clutch and abutments J, movableinto and out of the path of the cams. The cams f are arranged ondiametrically opposite sides of the clutch, since the arrangement shownis designed to throw the clutch out of operation after it has completeda half-revolution. The abutments J are arranged on the same side of theclutch and are in the form of plungers mounted to slide into and out ofthe path of the cam f. The plungers are so connected or operated thatone of them moves into the path of a cam f as the other is disengagedfrom the other cam f, and consequently there is always an abutment inthe path of a cam ready to throw the clutch F out of engagement with theclutch member F. There is no possibility therefore for the clutch tomake more than a half-revolution or to get out of time with the deviceswhich operate the plungers J.

The plungers J are connected so that the inward movement of one isaccompanied by an outward movement of the other by means of a pinion J,which lies between the plungers and engages rack-teeth formed thereon.The pinion J is secured to a short vertical shaft J which may be rockedat the proper times to operate the plungers J through a segment C. Whenthis shaft is rocked, to withdraw one of the plungers J from engagementwith a cam f and allow the clutch F to engage the rotating clutch memberF the other plunger J is advanced into the path of the other cam f, sothat as the clutch completes a half-revolution this cam f acts againstthe abutment J to disengage the clutch from the rotating clutch member.The clutch and gear G are held in position after each halfrevolution bya spring-operated pin g, having a V shaped end arranged to engagenotches in the hub of the gear.

In Fig. 3 a modified arrangement of the device for controlling theoperation of the clutch F is shown. In this construction the clutch F isprovided with two diametrically opposite camsf, arranged in the sametransverse plane, but at difl erent distances from the axis of theclutch. These two cams co operate with a single plunger J, which movesinto the path of one cam as it is moved to disengage it from the othercam. For instance, as the plunger J is retracted from the position shownin Fig. 3 to the position shown in dotted lines it disengages the cam fwhich is nearer the axis of the clutch, thus allowing the clutch to moveinto engagement with the clutch member F, and at the same time movesinto the path of the camf which is farther from the axis of the clutch,so that as the clutch completes a half-revolution this cam acts againstthe plunger to disengage the clutch from the clutch member F.

In Figs. 4 and 5 another modified construction of the devices forcontrolling the clutch F is shown. In this construction there is asingle cam f connected with the clutch, and this cam cooperates with twoabutments J, arranged on diametrically opposite sides of the clutch.These abutments are in the form of arms secured to a rock-shaft K, whichis rocked to disengage one of the abutments from the camf andsimultaneously move the other abutment into the path of the cam, so thatthe clutch is thrown out after making a half -revolution. The rock-shaftK is connected with a shaft K, corresponding to the shaft J 2 in Fig. 2,by a rack-bar K one end of which is provided with teeth engaging apinion K on the shaft K and the other end of which is provided withrack-teeth engaging a segment K", secured to the rock-shaft.

In all the different forms of device for controlling the operation of'the clutch F the clutch is thrown into and out of operation bycooperating rotary and non-rotary members, and in each case whenever anon-rotary member is withdrawn from engagement with a rotary member anon-rotary member is simultaneously moved into the path of a rotarymember, so that the act of throwing the clutch into operation sets thedevices for throwing the clutch out of operation, and consequently theproper timing and operation of the clutch are positively insured. Asindicated in the modifications shown, one or more non-rotary members'maybe employed or one or more rotary members, the result and mode ofoperation being in general the same with the difierent arrangements ofthe rotary and non-rotary members. It will also be understood that theparts may be constructed and .arranged to secure the throwing out of theclutch after it has made a complete revolution or any desired fractionof a revolution.

What I claim, and desire to secure by Letters Patent, is-

1. The combination with a clutch, of rotary and non-rotary memberscooperating to disengage said clutch and hold it out of operation, meansfor withdrawing a non-rotary member from engagement with a rotary memberand simultaneously moving a nonrotary member into the path of a rotarymember, substantially as described.

2. The combination with a clutch, of one or more cams, carried by theclutch, one or more abutments for cooperating therewith to hold theclutch out of operation, means for disengaging an abutment from a cam torelease the clutch and simultaneously moving an abutment into positionto throw the clutch out of operation, substantially as described.

3. The combination with a clutch, of one or more cams carried by theclutch, two abutments cooperating therewith to hold the clutch out ofoperation, connections between the abutments for moving one into thepath of a cam as the other is disengaged from a cam, substantially asdescribed.

4. The combination with a clutch, of a plurality of cams carried by theclutch, two abutments for cooperating therewith to hold the clutch outof operation, connections between the abutments for moving one into thepath of the cam as the other is disengaged from a cam, substantially asdescribed.

RICHARD T. WINGO.

Witnesses:

J. H. THURSTON, W. H. THURSTON.

